In the administration of the public health and quarantine laws of the state, the appointment of all subordinate officers and employees shall be made by the health officer or officers in authority, subject, however, to the approval of the State Board of Health or of a county board of health, in accordance with their respective jurisdictions. All expenditures, except such as are provided for by specific appropriations, shall be under the control of the Governor, the judge of probate and county commission or of the municipal authorities, in the same manner as such expenditures are made under state, county or municipal authority.